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Antioxidants including vitamin E can promote lung cancer: study
Reuters ^ | Jan. 29, 2014 | Sharon Begley

Posted on 01/30/2014 9:48:59 PM PST by Tired of Taxes

(Reuters) - A decades-old medical mystery - why antioxidants such as vitamin E and beta carotene seemed to accelerate the growth of early lung tumors in high-risk populations such as smokers, rather than protect them from cancer, as theory suggests - may have been solved, according to research published on Wednesday.

In essence, "antioxidants allow cancer cells to escape cells' own defense system" against tumors,... That lets existing tumors, even those too small to be detected, proliferate uncontrollably.

....

The antioxidants caused a 2.8-fold increase in lung tumors, made the tumors more invasive and aggressive, and caused the mice to die twice as quickly - all compared to mice not given antioxidants.

When the antioxidants were added to human lung tumor cells in lab dishes, they also accelerated cancer growth.

That result jibed with the many studies finding that "antioxidants do not protect against cancer in healthy people and may increase it" or promote it in those who already do, said Bergo.

The significant advance in the study was pinpointing how this can be. What seems to happen is that antioxidants indeed decrease DNA damage, as expected. But the damage becomes so insignificant as to be undetectable by the cell. The cell therefore does not deploy its cancer-defense system, which is based on a protein called p53.

Ordinarily, if the p53 system detects significant DNA damage, such as from ultraviolet light, it kills the cell before it can become malignant. By allowing cancer cells to stay below the radar of p53, antioxidants allow tumors to thrive, the study found.

....

(Excerpt) Read more at reuters.com ...


TOPICS: News/Current Events
KEYWORDS: antioxidants; cancer
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This story has been circulating, but I didn't find it posted here yet.
1 posted on 01/30/2014 9:48:59 PM PST by Tired of Taxes
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To: Tired of Taxes

To heck with it all, I’m moving to China and taking up red wine drinking and out of control capitalism!


2 posted on 01/30/2014 9:50:43 PM PST by jocon307
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To: AllAmericanGirl44; Armen Hareyan; B4Ranch; Ban Draoi Marbh Draoi; bayareablues; BykrBayb; ...
FYI. This story has been circulating the last few days.

CANCER WARRIORS PING

This is a ping list for cancer survivors and caregivers to share information. If you would like your name added to or removed from this ping list, please tell us in the comments section at this link (click here). (For the most updated list of names, click on the same link and scroll to the end of the comments.)

3 posted on 01/30/2014 9:53:51 PM PST by Tired of Taxes
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To: Tired of Taxes

Here we go again....What KIND of Vitamin E?


4 posted on 01/30/2014 9:54:41 PM PST by goodnesswins (R.I.P. Doherty, Smith, Stevens, Woods.)
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To: Tired of Taxes

Here we go again....What KIND of Vitamin E?


5 posted on 01/30/2014 9:54:41 PM PST by goodnesswins (R.I.P. Doherty, Smith, Stevens, Woods.)
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To: jocon307

It is difficult to keep up with all the changing advice.


6 posted on 01/30/2014 9:55:05 PM PST by Tired of Taxes
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To: Tired of Taxes
this just continues a trend I've noticed all my life.

____________ is the new miracle food, eat/drink it and you will live forever.

fast forward 10-20 years...

eating/drinking _______________ will now kill you.

People... STOP chasing these fads! do EVERYTHING in moderation.

7 posted on 01/30/2014 9:55:06 PM PST by TexasFreeper2009 (Obama lied .. the economy died.)
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To: TexasFreeper2009

Suicide in “moderation?” Heroin in “moderation?” Just a thought...


8 posted on 01/30/2014 9:56:53 PM PST by goodnesswins (R.I.P. Doherty, Smith, Stevens, Woods.)
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To: jocon307

Fear not ! Agenda 21 and Codex Alimentarius coming here soon, all of our supplements will soon be taken away.
The 1000 page Farm Bill will send us on our way,in the Senate now. Have to say , it is mostly R’s voting for it. The lobbying and omnibus bills must be stopped.
Period.


9 posted on 01/30/2014 9:57:23 PM PST by acapesket
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To: TexasFreeper2009

Recently, someone told me that eating lettuce and consuming calcium can cause gallstones. We. Just. Can’t. Win.


10 posted on 01/30/2014 9:58:47 PM PST by Tired of Taxes
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To: Tired of Taxes

My Mom is in her upper 70s and she still smokes, since a young adult.

She gets out of breath real easy but so far no cancer, still alive in home.

My dad gave up smoking at ~ 50 and died of heart attack at 60.


11 posted on 01/30/2014 9:59:22 PM PST by sickoflibs (Obama : 'Any path to US citizenship for illegals HERE is a special path to it ')
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To: sickoflibs

I know, I know...

I never smoked. Cancer at 46.

My mother smoked. Quit at 50. She’s 71 and never had cancer. I told her maybe I should’ve smoked. ;-)


12 posted on 01/30/2014 10:01:37 PM PST by Tired of Taxes
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To: Tired of Taxes

Kind of interesting how a billion stories on nutritional supplements are bad for us are seemingly simultaneously piping up. It’s as though the groundwork is being laid to outlaw them


13 posted on 01/30/2014 10:05:21 PM PST by Jonty30 (What Islam and secularism have in common is that they are both death cults)
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To: Tired of Taxes
In two letters, a period and a exclamation mark, “B.S!”
14 posted on 01/30/2014 10:08:50 PM PST by mazz44
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To: Jonty30

It does seem suspicious, doesn’t it?


15 posted on 01/30/2014 10:11:35 PM PST by Tired of Taxes
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To: goodnesswins; All
If you want to learn the secret to long life....mash here....

The Ikarian way of living and dying

16 posted on 01/30/2014 10:15:36 PM PST by spokeshave (OMG.......Schadenfreude overload is not covered under Obamacare :-()
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To: Tired of Taxes

True—until the next study is published. “Science is but an image of the truth.” Francis Bacon


17 posted on 01/30/2014 10:17:44 PM PST by Fungi
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To: Tired of Taxes

Recently, someone told me that eating lettuce and consuming calcium can cause gallstones. We. Just. Can’t. Win.”

Life, although it doesn’t cause death, sets us up for it...


18 posted on 01/30/2014 10:18:55 PM PST by babygene ( .)
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To: Tired of Taxes

Recently D, now E.


19 posted on 01/30/2014 10:21:46 PM PST by Gene Eric (Don't be a statist!)
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To: Fungi

but it’s science, the new religion. if the media says a scientist said it then we all little serfs must obey the gov sanctioned expert, the doctor, the scientist and the media.

actually no. I won’t believe anything they say nor will i do anything they say for me to do

and most scientists believe in the global warming hoax. gov science is garbage


20 posted on 01/30/2014 10:26:33 PM PST by Democrat_media (Obama ordered IRS to rig 2012 election and must resign)
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